CN1799841A - Printing data conversion method and apparatus thereof - Google Patents
Printing data conversion method and apparatus thereof Download PDFInfo
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- CN1799841A CN1799841A CN 200410103970 CN200410103970A CN1799841A CN 1799841 A CN1799841 A CN 1799841A CN 200410103970 CN200410103970 CN 200410103970 CN 200410103970 A CN200410103970 A CN 200410103970A CN 1799841 A CN1799841 A CN 1799841A
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Abstract
The invention discloses a printed data exchange method and relative device, which exchanges the printed data at any resolution factor to be printed. First, exchanging initial image of initial resolution factor to relative ink image of relative ink droplets number; using the theory of ink droplet balance to calculate the printed ink image of new resolution factor while the ink image has same ink droplet number of printed ink image; then exchanging the printed ink image into printed half tone image to be output. When said printed data exchange method and device process the prints of different resolution factor, the half tone image can be attained via exchange without any color experiment, and said exchange theory can print the image at any resolution factor, while the high and low resolution factor can be exchanged. Compared to initial image, the quality of attained image will not be changed and its color will be same too.
Description
Technical field
The present invention relates to a kind of printing data conversion method and device thereof, be applied to, particularly a kind of printing data conversion method and the device thereof that print data resolution ratio directly can be changed and exported as image output equipments such as printers.
Background technology
Maturation along with digital technology, the application of digitized video also more and more widely, not only can be by the integrating capture image of digital camera and computer, make new image, more can directly utilize the output of image output equipment, for example, present digital photo printer, nearly all integrated memory card slot is with LCD screen, the memory card slot is supported most on the market memory card specifications usually, so needn't be again by the interface of computer as printing, insert in the printer as long as will take good memory card, the work that directly utilizes LCD screen above the printer and button just can carry out selective printing, very convenient and quick.
Yet, digitized video all is by three primary colors usually: red (R), green (G), blue (B) mixes according to different ratios, many image output equipments and display unit but can't produce enough color ranges, when desire is printed digitized video, this digitized video can be earlier through the color gamut space of color conversion to output device, with the printer is example, be generally cyanic colours (C, Cyan), aubergine (M, Magenta) and yellow (Y, Yellow), image can be done the depression of order processing then, makes original polychrome rank image become low color range image, and this step is called halftone process, each pixel in the halftoning image represents that with different degree different degree corresponds to different ink droplet numbers again.At last, the halftoning image can convert print data output according to the black hole spread pattern of ink gun to, can see that finally one prints the image output.
Along with the progress of print system and ink gun, print resolution by 300 before surplus ten years count/(DPI Dot/Inch) brings up to more than the present 4800DPI inch.Generally speaking, the resolution ratio of digitized video just determines when taking or scan, when printing, what can change has only print resolution, and still, the size of the image of printout can change along with the difference of print resolution, print resolution is high more, and the image that is printed is more little.Therefore, just must do a little processing for the image output that under different print resolution, is fixed to printing image; On the other hand, the printing model of different resolution must be tested the relation that just can obtain between halftoning degree and the ink droplet through color, and experiment each time all must spend considerable manpower and time, especially in high-resolution printing model.
In order to address the above problem, the patent No. is 5,480,240 United States Patent (USP) directly originally the print data of 300DPI repeat just original 2 points that a bit become, and in the horizontal direction in order to keep originally printing the characteristic of image, it can do the action of correction to the print data of multiplication, the action of this correction is exactly to take out a little, makes it not have adjacent 2 situations of all printing and takes place, and forms a kind of virtual 600DPI print data.The method only realizes in the horizontal direction that 600DPI prints, and it seems that its data mode strictness be not real 600DPI.
The patent No. is 5,742,300 United States Patent (USP) also is the print resolution of reinforcement level, the first data that on level, double of its method, any becomes 2 points, because the print data of multiplication can cause edge blurryization, so, can do the processing of taking out a little at the part at edge, can use the shielding of checkerboard type that print data is reduced as for the part at non-edge, this makes marking ink identical in the time of can be as best one can with original resolution printing.The method is the resolution ratio on the enhanced level still, and must detect the edge part of image, and computing is quite complicated.
In addition, the patent No. is 5,912,683 United States Patent (USP) proposes a kind of method that horizontal print resolution is strengthened, its method is not directly image to be become original twice, but the table (Dither Table) that will tremble when halftone process replaces with conversion table (Transition Table), the same pixel of image can be continuously in the horizontal direction with relatively twice of two threshold values (Threshold) of conversion table, therefore, same pixel can obtain the output of two halftone pixel points.The method is restricted to uses the method for trembling to do halftone process, and the resulting halftoning quality of image of the method for trembling is relatively poor, and the ink droplet number in the unit are can increase, and might cause ink overflow look or even color offset.
The patent No. is that 6,075,926 the used mode of United States Patent (USP) is to utilize in the low-light level district, and is more insensitive because of human eye vision, adopt to duplicate or average method increases and counts, but brightness then adopts the mode of tabling look-up to do slotting point during greater than a certain threshold values.At first, make a database (Data Base), this database includes the different images feature, and correspondence goes out by any slotting putting into needed 4 electric-wave filter matrix of 4 point processings (Filter Matrix).When actual operation, with the process points is the center, and 8 around it deduct process points and become one 8 dimensional vectors, contrast through computing, remove to seek one group or pairing 4 electric-wave filter matrix of the similar present process points speciality of array in the database, the weight calculation with similarity degree goes out last value of inserting point again.The method needs off-line to set up this database and be stored in the internal memory, though the quality of image that the interpolation of the big more institute of database is come out is relatively good,, shared memory headroom is the also all relative increase of needed operand during with contrast, on the contrary then the quality of image is poor.On the other hand, just need different databases at different multiplying powers, also just expression needs more internal memory.
The patent No. is 6,411,399 United States Patent (USP) because original print data can be earlier according to the print resolution multiplication of desire conversion, if print data is printed on the paper fully, quantity of ink also can double, and the situation of the look that overflows can be quite serious, so use shielding that unnecessary print data is removed, and this shielding can change along with print position, makes quantity of ink can not change because of resolution changing.Though it is constant that the method is being kept quantity of ink, but its print data can change because of the position, around this pixel that is equivalent to originally to print on central authorities but is dispersed to, this may cause degradation of print quality, and when 2 vicinities on high-resolution were printed, the situation of the look that overflows still can take place.
From the above mentioned, when desire changes print resolution output, must do the experiment of the corresponding ink droplet number of halftoning degree earlier, on the other hand, during the image that stores in printing memory card, the size of image output can change along with print resolution; Therefore, need provide a kind of printout that reaches different resolution, and save manpower and the printing data conversion method of time and the device of color experiment, to overcome above-mentioned disappearance.
Summary of the invention
The object of the present invention is to provide a kind of printing data conversion method and device, when the printing of doing different print resolution, the halftoning image can obtain by conversion, do not test and need not do any color, and this kind changed the mechanism and image can be printed with arbitrary resolution, and can change mutually between high-resolution and the low resolution, and resulting image is compared with raw video, the quality of image can't change, and does not also have too big difference on the color.
To achieve these goals, the invention provides a kind of printing data conversion method, comprise the following steps:
Input one raw video with former resolution ratio;
Changing this raw video is an ink droplet image, and the per unit area of this ink droplet image has a corresponding ink droplet number respectively;
The opposite position of the new resolution ratio of the corresponding ink droplet to of this ink droplet image of mean allocation produces a printed dot image corresponding to this new resolution ratio, makes this ink droplet image have identical ink droplet number with this printed dot image;
Changing this printed dot image is a printing halftoning image; And
Export this printing halftoning image.
Above-mentioned printing data conversion method, wherein, this raw video is represented with the kenel of halftoning degree.
Above-mentioned printing data conversion method, wherein, the opposite position of the new resolution ratio of the corresponding ink droplet to of this ink droplet image of this mean allocation, generation one may further comprise the steps again corresponding to the step of the printed dot image of this new resolution ratio:
This correspondence ink droplet is changed the ink droplet number divided by this new resolution ratio and the ratio acquisition one of this former resolution ratio; And
Divide equally this conversion ink droplet number form at the opposite position of this new resolution ratio and become this printed dot image.
Above-mentioned printing data conversion method wherein, when this conversion ink droplet number is non-positive integer, makes the ink droplet summation of the relative position of this new resolution ratio fix this ink droplet number of homogenizing with the ink droplet summation of this former resolution ratio.
Above-mentioned printing data conversion method, wherein, this ink droplet number is made as the most approaching with part and is made as the most approaching and comes this ink droplet number of homogenizing greater than the mode of this conversion ink droplet number less than this conversion ink droplet number and part.
Above-mentioned printing data conversion method, wherein, the opposite position of the new resolution ratio of this correspondence ink droplet to of this ink droplet image of this mean allocation, generation one is carried out by the mode of inquiring about an ink droplet conversion table corresponding to the step of the printed dot image of this new resolution ratio.
Above-mentioned printing data conversion method, wherein, this ink droplet conversion table is by the ink droplet summation and the fixing principle foundation of the ink droplet summation of this former resolution ratio of the relative position of this new resolution ratio.
In order better to realize above-mentioned purpose, the present invention also provides a kind of print data conversion equipment, comprising:
One image input block is used for producing a raw video with former resolution ratio;
One former resolution ratio ink droplet is counted corresponding unit, is used for this raw video is converted to an ink droplet image, and the per unit area of this ink droplet image has a corresponding ink droplet number respectively;
One ink droplet balancing unit is converted to the opposite position of a new resolution ratio with the corresponding ink droplet of this ink droplet image, produces a printed dot image corresponding to this new resolution ratio, and this ink droplet image has identical ink droplet number with this printed dot image; And
One new resolution ratio halftoning ink droplet processing unit is the output of halftoning image with this printed dot video conversion.
Above-mentioned print data conversion equipment is characterized in that this raw video is represented with the kenel of halftoning degree.
Above-mentioned print data conversion equipment, it is characterized in that, this ink droplet balancing unit should the correspondence ink droplet obtains one divided by the ratio of this new resolution ratio and this former resolution ratio change the ink droplet number, and divide equally the opposite position that this conversion ink droplet counts to this new resolution ratio and form this printed dot image.
Above-mentioned print data conversion equipment is characterized in that, when this conversion ink droplet number is non-positive integer, makes the ink droplet summation of the relative position of this new resolution ratio fix this ink droplet number of homogenizing with the ink droplet summation of this former resolution ratio.
Above-mentioned print data conversion equipment is characterized in that, this ink droplet number is made as the most approaching with part and is made as the most approaching and comes this ink droplet number of homogenizing greater than the mode of this conversion ink droplet number less than this conversion ink droplet number and part.
Above-mentioned print data conversion equipment is characterized in that, this ink droplet balancing unit comprises an ink droplet conversion table.
Above-mentioned print data conversion equipment is characterized in that, this ink droplet conversion table is by the ink droplet summation and the fixing principle foundation of the ink droplet summation of this former resolution ratio of the relative position of this new resolution ratio.
Printing data conversion method disclosed in this invention and device thereof, when the printing of doing different print resolution, the halftoning image can obtain by conversion, and need not do any color experiment, and this kind changed the mechanism and image can be printed with arbitrary resolution.
Only change print resolution on the horizontal direction mostly compared to the employed method of prior art, and can only do low resolution to high-resolution conversion, moreover, mostly the multiplying power of conversion is 2, and method used in the present invention can be transformed into arbitrary resolution, and can change mutually between high-resolution and the low resolution.
Utilize method disclosed by the invention to make the conversion of resolution of print data, resulting image is compared with raw video, and the quality of image can't change, and does not also have too big difference on the color.
The present invention is described in detail below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is the flow chart of printing data conversion method of the present invention;
Fig. 2 is the system block diagrams of print data conversion equipment of the present invention;
Fig. 3 is the halftoning image data of the raw video of 300*300 for print resolution in the embodiment of the invention;
Fig. 4 is the ink droplet image of 300*300 for print resolution in the embodiment of the invention;
Fig. 5 is the printed dot image of 600*600 for print resolution in the embodiment of the invention; And
Fig. 6 is the printing halftoning image data of 600*600 for print resolution in the embodiment of the invention.
Wherein, Reference numeral:
10 image input blocks
20 former resolution ratio ink droplets are counted corresponding unit
30 ink droplet balancing units
40 new resolution ratio halftoning ink droplet processing units
The specific embodiment
Printing data conversion method of the present invention and device thereof are realized the conversion and the output of print data resolution ratio according to the idea of ink droplet balance.
Printing data conversion method of the present invention shown in Figure 1 is to be applied in as in the image output equipments such as printer, can directly change the resolution ratio of print data and with it output, its main flow process includes the following step:
At first, import raw video (step 100) with former resolution ratio;
Then, raw video is converted to ink droplet image (step 200), and the per unit area of ink droplet image has corresponding ink droplet number respectively;
The corresponding ink droplet of mean allocation ink droplet image produces the printed dot image (step 300) corresponding to new resolution ratio, and makes ink droplet image and printed dot image have identical ink droplet number to the opposite position of new resolution ratio again;
Subsequently, the printed dot video conversion is printing halftoning image (step 400);
At last, output print halftoning image (step 500).
In addition, as shown in Figure 2, according to above-mentioned printing data conversion method, print data conversion equipment provided by the present invention, comprise that an image input block 10, one former resolution ratio ink droplet counts corresponding unit 20, an ink droplet balancing unit 30 and a new resolution ratio halftoning ink droplet processing unit 40, and ink droplet balancing unit 30 has an ink droplet conversion table, and the fixing principle of the ink droplet summation of the new resolution ratio relative position of this ink droplet conversion table basis and the ink droplet summation of former resolution ratio is set up; After 10 generations of image input block have the raw video of former resolution ratio, former resolution ratio ink droplet is counted corresponding unit 20 can be converted to the ink droplet image with raw video, and the per unit area that makes the ink droplet image has corresponding corresponding ink droplet number respectively, utilize ink droplet balancing unit 30 the corresponding ink droplet of ink droplet image to be converted to the opposite position of new resolution ratio again, and generation is corresponding to the printed dot image of new resolution ratio, make ink droplet image and printed dot image have identical ink droplet number, and the printed dot video conversion is the output of halftoning image by new resolution ratio halftoning ink droplet processing unit 40.
Below the present invention is elaborated.
The former resolution ratio of supposing raw video is VRori*HRori (step 100), and this raw video is with the N bit representation, and just each pixel of raw video has the 2N kind to change at most, and these change the different halftoning degree of promptly representing.When reality was printed, different halftoning degree can have different ink droplet numbers, and table one is the halftoning degree of former resolution ratio and the mapping table of corresponding ink droplet number.For ease of difference, below with the ink droplet of the different halftoning degree of former resolution ratio and new resolution ratio respectively the corresponding ink droplet of called after with change ink droplet, in addition, and with the halftoning image of former resolution ratio and new resolution ratio respectively called after halftoning image with print the halftoning image.
Table one
| The halftoning degree | Coding (N position) | Corresponding ink droplet number |
| 0 | 00...0 | 0 |
| 1 | 00...1 | . |
| . | . | . |
| . | . | . |
| . | . | . |
| 2 N-1 | 11...1 | M |
If want that the new resolution ratio of exporting is VRnew*HRnew, just the print resolution of raw video will convert new resolution ratio VRnew*HRnew to by former resolution ratio VRori*HRori.At this, must try to achieve halftoning degree and the corresponding relation of changing the ink droplet number under new resolution ratio earlier.In theory, do not have under the situation of change at ink and paper, no matter how resolution ratio changes, ink droplet total amount in the unit are should be identical, according to formula (1), possessing the pixel of raw video of former resolution ratio and the relation between the new resolution ratio pixel can be calculated, and we claim that both passes are conversion proportion (Conversion Ratio).
CR＝(VR
new*HR
new)/(VR
ori*HR
ori) (1)
Pixel with raw video is a unit are, after being converted into new resolution ratio, being equivalent to CR new resolution ratio pixel is unit are, utilize the notion that the ink droplet sum total must equate in the unit are, can learn the ink droplet sum total of printing in CR the new resolution ratio pixel, the corresponding ink droplet number that the combination of 2N kind is just arranged at most in CR pixel, the corresponding ink droplet number of this 2N kind combination can be found by table one, and corresponding ink droplet number can be obtained changing the ink droplet number divided by conversion proportion CR, again the conversion ink droplet of each halftoning degree is assigned to each pixel in CR the pixel, so can obtains all conversion ink droplet arrays that new resolution ratio pixel may occur and close.Table two is the halftoning degree of former resolution ratio and the ink droplet conversion table of new resolution ratio pixel.
Table two
| Former resolution ratio | New resolution ratio | ||
| The halftoning degree | The corresponding ink droplet number of single pixel | Unit are conversion ink droplet number | Single pixel conversion ink droplet number |
| 0 | 0 | 0 | 0 |
| 1 | . | . | . |
| . | . | . | . |
| . | . | . | . |
| . | . | . | . |
| 2 N-1 | M | M | M/CR |
Under new resolution ratio, the conversion ink droplet number that each pixel is printed is minimum to be 0, mostly be M/CR most drips, arrange to big by little according to conversion ink droplet number, total P kind conversion ink droplet number, the required figure place Q of this P kind conversion ink droplet number encoder can be tried to achieve by formula (2), in the formula, the MAXINTO function representation is got its max-int, each pixel of the new resolution ratio halftoning of just available Q bit representation image, so we have obtained new resolution ratio halftoning degree and the mapping table of changing the ink droplet number, as shown in Table 3.This mapping table can provide the printing halftoning image of new resolution ratio to use for coding.
Table three
| The halftoning degree | Coding (Q position) | Conversion ink droplet number |
| 0 | 00...0 | 0 |
| 1 | 00...1 | . |
| . | . | . |
| . | . | . |
| . | . | . |
| P-1 | 11...1 | M/CR |
Below further specify the conversion and the output that how to utilize printing data conversion method provided by the present invention and device thereof to realize print data resolution ratio.
At first, after the image input block 10 that utilizes the print data conversion equipment produces the raw video with former resolution ratio (step 100), former resolution ratio ink droplet is counted corresponding unit 20 and can be earlier converted the pixel of the halftoning image of former resolution ratio to corresponding ink droplet number, all pixels all just obtain the ink droplet image of a former resolution ratio, just the halftoning image (step 200) that shows with corresponding ink droplet after this conversion.For ease of difference, below the ink droplet image of former resolution ratio and new resolution ratio is called ink droplet image and printed dot image,
Then, ink droplet balancing unit 30 can utilize the ink droplet conversion table that each pixel of the ink droplet image of former resolution ratio is converted into CR pixel according to conversion proportion CR, wherein, conversion proportion CR is the ratio of new resolution ratio and former resolution ratio, ink droplet number in this CR pixel must be identical with the ink droplet number of former resolution ratio one pixel, therefore, these corresponding ink droplets are obtained to change the ink droplet number divided by conversion proportion CR, then, to change the ink droplet number is assigned on CR the pixel, all change when all pixels and to finish, the printed dot image of a new resolution ratio can obtain (step 300).
At last, new resolution ratio halftoning ink droplet processing unit 40 becomes the halftoning degree with the printed dot video conversion, can obtain the printing halftoning image (step 400) of a new resolution ratio, and can encode.This high-resolution printing halftoning image can input to the printer system folding and print (step 500).
In one embodiment, the data of the raw video with former resolution ratio 300*300 that is produced by image input block 10 are 8 (step 100), and in other words, the excursion of raw video input value is between 0-255.The output of halftoning then is 2 positions: 00,01,10 or 11, the relation between halftoning degree and the corresponding ink droplet number as shown in Table 4, wherein, 00 this pixel of expression need be printed 0 corresponding ink droplet; 4 corresponding ink droplets are printed in 01 expression; 8 corresponding ink droplets are printed in 10 expressions; 12 corresponding ink droplets are printed in 11 expressions.
Table four
| The halftoning degree | Coding (2) | Corresponding ink droplet number |
| 0 | 00 | 0 |
| 1 | 01 | 4 |
| 2 | 10 | 8 |
| 3 | 11 | 12 |
As shown in Figure 3, the size of utilizing former resolution ratio ink droplet to count corresponding unit 20 is changed raw video through halftoning after is 10*10, halftoning degree behind numeral on the pixel coding can obtain the ink droplet image, (step 200) as shown in Figure 4 after converting corresponding ink droplet number to according to table four.
At this moment, if will be with the new resolution printing of raw video with 600*600, at first, what try to achieve be halftoning degree under new resolution ratio and the mapping table of changing the ink droplet number.Conversion proportion CR can be tried to achieve by formula (1), its value is 4, just a pixel of former resolution ratio is equivalent to four pixels of new resolution ratio, we are unit are with a pixel of former resolution ratio, because the number of ink droplets in the unit are can not change, divided by conversion proportion CR, promptly obtain changing the ink droplet number by the pairing corresponding ink droplet number of the halftoning degree of former resolution ratio, the pixel that conversion ink droplet number is assigned to new resolution ratio can obtain the ink droplet conversion table of table five.
Table five
| | Resolution ratio 600*600 | ||
| The halftoning degree | The corresponding ink droplet number of single pixel | Unit are conversion ink droplet number | Single pixel conversion ink droplet number |
| 0 | 0 | 0 | 0 |
| 1 | 4 | 4 | 1 |
| 2 | 8 | 8 | 2 |
| 3 | 12 | 12 | 3 |
Then, by ink droplet conversion table (table five), can each pixel of the ink droplet image of former resolution ratio 300*300 be converted into 4 pixels of new resolution ratio 600*600 by ink droplet balancing unit 30 according to conversion proportion 4, conversion ink droplet number in these 4 pixels is identical with the corresponding ink droplet number of former resolution ratio 3,00*,300 one pixel, distribute corresponding ink droplet in the mode of mean allocation, just will change ink droplet is assigned on 4 pixels, all change when all pixels and to finish, the printed dot image that print resolution is 600*600 can obtain, as shown in Figure 5.(step 300)
Under new resolution ratio 600*600, the ink droplet number that each pixel is printed is minimum to be 0, mostly be 3 most, arrange to big by little according to the ink droplet number, have 4 kinds of ink droplet numbers, it is 2 that these 4 kinds of required figure places of ink droplet number encoder are tried to achieve according to formula (2), therefore, each pixel of halftoning image when the new resolution ratio of available 2 bit representations is 600*600, in the time of also just can obtaining new resolution ratio and be 600*600, the correspondence table of halftoning degree and conversion ink droplet number, as shown in Table 6.This correspondence table can provide the halftoning image of new resolution ratio 600*600 encode (step 400).
Table six
| The halftoning degree | Coding (2) | Conversion ink droplet number |
| 0 | 00 | 0 |
| 1 | 01 | 1 |
| 2 | 10 | 2 |
| 3 | 11 | 3 |
At last, then with the printing halftoning image of new resolution ratio halftoning ink droplet processing unit 40 after according to the corresponding output encoder of table six, the printed dot image as shown in Figure 6, this print halftoning image can be for new resolution ratio use (step 500) during for 600*600.
What must replenish is, when corresponding ink droplet number being converted resulting conversion ink droplet number when being non-positive integer according to conversion proportion CR by ink droplet balancing unit 30, the ink droplet sum total that also will meet every CR pixel must the principle identical with the ink droplet sum total of former resolution ratio one pixel be distributed the ink droplet number, therefore be made as part the most approaching and less than conversion ink droplet number, and partly be made as the most approaching and greater than the next balanced ink droplet number of mode of conversion ink droplet number; For example, if the corresponding ink droplet number of the pixel of former resolution ratio 300*300 is 1, new resolution ratio 600*600, calculating conversion proportion CR is 4, at this moment, can't be that 1/4 mode is distributed according to the conversion ink droplet number of per 4 pixels, but also need to be equal to the total incompatible distribution ink droplet number of corresponding ink droplet number of a pixel of former resolution ratio, therefore with the conversion ink droplet number sum total of per 4 pixels of new resolution ratio, the conversion ink droplet number of these 4 pixels can be respectively with 1,0,0,0 mode is distributed.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (14)
1. a printing data conversion method comprises the following steps:
Input one raw video with former resolution ratio;
Changing this raw video is an ink droplet image, and the per unit area of this ink droplet image has a corresponding ink droplet number respectively;
The opposite position of the new resolution ratio of the corresponding ink droplet to of this ink droplet image of mean allocation produces a printed dot image corresponding to this new resolution ratio, makes this ink droplet image have identical ink droplet number with this printed dot image;
Changing this printed dot image is a printing halftoning image; And
Export this printing halftoning image.
2. printing data conversion method according to claim 1 is characterized in that this raw video is represented with the kenel of halftoning degree.
3. printing data conversion method according to claim 1, it is characterized in that, the opposite position of the new resolution ratio of the corresponding ink droplet to of this ink droplet image of this mean allocation, generation one may further comprise the steps again corresponding to the step of the printed dot image of this new resolution ratio:
This correspondence ink droplet is changed the ink droplet number divided by this new resolution ratio and the ratio acquisition one of this former resolution ratio; And
Divide equally this conversion ink droplet number form at the opposite position of this new resolution ratio and become this printed dot image.
4. printing data conversion method according to claim 3 is characterized in that, when this conversion ink droplet number is non-positive integer, makes the ink droplet summation of the relative position of this new resolution ratio fix this ink droplet number of homogenizing with the ink droplet summation of this former resolution ratio.
5. printing data conversion method according to claim 4 is characterized in that, this ink droplet number is made as the most approaching with part and is made as the most approaching and comes this ink droplet number of homogenizing greater than the mode of this conversion ink droplet number less than this conversion ink droplet number and part.
6. printing data conversion method according to claim 1, it is characterized in that, the opposite position of the new resolution ratio of this correspondence ink droplet to of this ink droplet image of this mean allocation, generation one is carried out by the mode of inquiring about an ink droplet conversion table corresponding to the step of the printed dot image of this new resolution ratio.
7. printing data conversion method according to claim 6 is characterized in that, this ink droplet conversion table is by the ink droplet summation and the fixing principle foundation of the ink droplet summation of this former resolution ratio of the relative position of this new resolution ratio.
8. print data conversion equipment comprises:
One image input block is used for producing a raw video with former resolution ratio;
One former resolution ratio ink droplet is counted corresponding unit, is used for this raw video is converted to an ink droplet image, and the per unit area of this ink droplet image has a corresponding ink droplet number respectively;
One ink droplet balancing unit is converted to the opposite position of a new resolution ratio with the corresponding ink droplet of this ink droplet image, produces a printed dot image corresponding to this new resolution ratio, and this ink droplet image has identical ink droplet number with this printed dot image; And
One new resolution ratio halftoning ink droplet processing unit is the output of halftoning image with this printed dot video conversion.
9. print data conversion equipment according to claim 8 is characterized in that this raw video is represented with the kenel of halftoning degree.
10. print data conversion equipment according to claim 8, it is characterized in that, this ink droplet balancing unit should the correspondence ink droplet obtains one divided by the ratio of this new resolution ratio and this former resolution ratio change the ink droplet number, and divide equally the opposite position that this conversion ink droplet counts to this new resolution ratio and form this printed dot image.
11. print data conversion equipment according to claim 10 is characterized in that, when this conversion ink droplet number is non-positive integer, makes the ink droplet summation of the relative position of this new resolution ratio fix this ink droplet number of homogenizing with the ink droplet summation of this former resolution ratio.
12. print data conversion equipment according to claim 11 is characterized in that, this ink droplet number is made as the most approaching with part and is made as the most approaching and comes this ink droplet number of homogenizing greater than the mode of this conversion ink droplet number less than this conversion ink droplet number and part.
13. print data conversion equipment according to claim 8 is characterized in that, this ink droplet balancing unit comprises an ink droplet conversion table.
14. print data conversion equipment according to claim 13 is characterized in that, this ink droplet conversion table is by the ink droplet summation and the fixing principle foundation of the ink droplet summation of this former resolution ratio of the relative position of this new resolution ratio.
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|---|---|---|---|
| CNB2004101039700A CN100374301C (en) | 2004-12-31 | 2004-12-31 | Printing data conversion method and apparatus thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111413182A (en) * | 2019-01-04 | 2020-07-14 | 船井电机株式会社 | Method for ejecting fluid from digital dispensing device and fluid dispensing system |
| US11768215B2 (en) | 2019-01-04 | 2023-09-26 | Funai Electric Co., Ltd. | Digital dispense system cartridge |
| US11933704B2 (en) | 2019-01-04 | 2024-03-19 | Funai Electric Co., Ltd. | Digital dispense system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5480240A (en) * | 1993-12-01 | 1996-01-02 | Lexmark International, Inc. | Print quality enhancement method and apparatus |
| US5742300A (en) * | 1995-01-03 | 1998-04-21 | Xerox Corporation | Resolution enhancement and thinning method for printing pixel images |
| US5704020A (en) * | 1995-03-08 | 1997-12-30 | Ricoh Company, Ltd. | Page printer resolution converting method, and variable-length reversible compression process |
| US5912683A (en) * | 1997-08-25 | 1999-06-15 | Lexmark International, Inc. | Method of printing with an ink jet printer using an enhanced horizontal resolution |
| JPH11170496A (en) * | 1997-12-10 | 1999-06-29 | Canon Inc | Ink jet recording device and method |
| US6411399B1 (en) * | 1999-06-21 | 2002-06-25 | Xerox Corporation | System for resolution enhancement, such as in a multi-pass ink-jet printer |
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2004
- 2004-12-31 CN CNB2004101039700A patent/CN100374301C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111413182A (en) * | 2019-01-04 | 2020-07-14 | 船井电机株式会社 | Method for ejecting fluid from digital dispensing device and fluid dispensing system |
| US11768215B2 (en) | 2019-01-04 | 2023-09-26 | Funai Electric Co., Ltd. | Digital dispense system cartridge |
| CN111413182B (en) * | 2019-01-04 | 2024-02-13 | 船井电机株式会社 | Method of ejecting fluid from a digital dispensing device and fluid dispensing system |
| US11933704B2 (en) | 2019-01-04 | 2024-03-19 | Funai Electric Co., Ltd. | Digital dispense system |
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| CN100374301C (en) | 2008-03-12 |
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